AZP: Log warning instead of error if no CUDA device found #10242
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What
Cosmetic: change the logging level from error to warning if no CUDA device is available.
Why ?
If CUDA device was not found, UCX is configured with no CUDA:
https://github.com/openucx/ucx/blob/master/buildlib/jucx/jucx-test.yml#L39
It's expected in some cases, as we currently do not have ARM machines with GPU.